Another Hulkamania running wild definitely wouldn't work. I cannot see how another 3:16 type character wouldn't work. Cena will definitely go over huge as another Hollywood Hogan type.
Oh, yeah - you'll have guys who go over big; I just don't think they'll reach the levels of Austin/Hogan, etc.
Each of those guys were special in their respective days. Unfortunately, these days, it's a lot harder to be "special."
That's what I mean when I say that Hulk Hogan - or his equivalent - would never have the same impact today.
Back then, being the best meant much more than it does now.
Today, being the best is kind of like being the Valedictorian of Summer school.